Did you copy the existing stylesheet into the CSS editor? This is a bad move. You should add only the changes you make to the CSS and check the "add to existing stylesheet" box. This might fix your problem.

@thesacredpath. I'm having some trouble adding your code to my Edit CSS and having it work. The original code doesn't contain 'Topsearch' but does contain 'searchform, searchformheader, searchbox, etc. How can I apply your code and move the search box? Any additional info needed, please let me know and I'll supply toot sweet.